Journal of the Korean Academy of Pediatric Dentistry 2005;32(4):693-702.
Published online November 30, 2005.
TIMING AND SEQUENCE OF ERUPTION OF PERMANENT TEETH IN A SAMPLE OF CHILDREN FROM YONSEI DENIAL HOSPITAL
1
2 
연세대학교 치과병원에 내원한 어린이에서의 영구치 맹출 시기 및 순서
강태성1, 최병재1, 권호근2, 손흥규1, 최형준1
1연세대학교 치과대학 소아치과학교실, 구강과학연구소
2연세대학교 치과대학 예방치과학교실, 구강과학연구소
Correspondence:  , 
Abstract
Accurate timing and sequence of eruption of permanent teeth are indicies of growth and essential for pediatric dentistry and pediatric clinical orthodontics. From the children brought to the Yonsei Dental Hospital during 2001 to 2003, 654 boys and 542 girls, ranging in age from five to fourteen years, were selected and analysed. The following was concluded. 1. Eruption time of maxillary teeth is 6.81 years in boys, 6.78 years in girls for central incisor, 8.30 years in boys, 7.98 years in girls for lateral incisor, 10.28 years in boys, 10.04 years in girls for canine, 9.74 years in boys, 9.90 years in girls for first premolar, 10.87 years in boys, 10.41 years in girls for second premolar, 6.25 years in boys, 6.54 years in girls for first permanent molar, 12.21 years in boys, 12.03 years in girls for second permanent molar 2. Eruption time of mandibular teeth is 6.00 years in boys, 6.06 years in girls for central incisor, 6.99 years in boys, 6.74 years in girls for lateral incisor, 9.83 years in boys, 9.17 years in girls for canine, 9.92 years in boys, 9.75 years in girls for first premolar, 10.66 years in boys, 10.39 years in girls for second premolar, 5.99 years in boys, 5.75 years in girls for first permanent molar, 11.92 years in boys, 12.17 years in girls or second permanent molar. 3. The following eruption sequence was observed the first permanent molar erupted first, followed by the central incisor, the lateral incisor, the first premolar, the canine, the second premolar and the second permanent molar in the maxilla. The first permanent molar erupted first, followed by the central incisor, the lateral incisor, the canine, the first premolar, the second premolar and the second permanent molar in the mandible.
Key Words: Permanent teeth, Eruption time, Eruption sequence


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